有効
Being effective or producing the desired result; having legal force or validity.
Exemplos
3 de 5このクーポンは明日まで有効だ。
This coupon is valid until tomorrow.
有効な対策を講じる必要があります。
We need to take effective measures.
これ、まだ有効かな？
Is this still valid/effective?
Família de palavras
Dica de memorização
Yuu (have/exist) + Kou (effect). Having an effect.
Quiz rápido
限られた資源を（ ）に活用する。
Correto!
A resposta correta é: 有効
Exemplos
このクーポンは明日まで有効だ。
everydayThis coupon is valid until tomorrow.
有効な対策を講じる必要があります。
formalWe need to take effective measures.
これ、まだ有効かな？
informalIs this still valid/effective?
実験により、新しい治療法の有効性が証明された。
academicExperiments proved the effectiveness of the new treatment.
時間を有効に使いましょう。
businessLet's use our time effectively.
Família de palavras
Colocações comuns
Frases Comuns
有効に機能する
to function effectively
期限が有効である
the deadline/limit is valid
有効打
effective blow/hit
Frequentemente confundido com
Yuukou means 'effective' or 'valid (legal)', while Yuuyou means 'useful' or 'helpful'.
Notas de uso
Common in IELTS Task 2 when discussing whether a policy or solution is 'effective'.
Erros comuns
Confusing 'Yuukou' (effective) with 'Yuunou' (capable/talented).
Dica de memorização
Yuu (have/exist) + Kou (effect). Having an effect.
Origem da palavra
Derived from characters meaning 'to have' and 'effect'.
Padrões gramaticais
Quiz rápido
限られた資源を（ ）に活用する。
Correto!
A resposta correta é: 有効
Vocabulário relacionado
Suitable or proper in the circumstances; appropriate.
正当Being lawful, fair, or based on a logical or moral reason; l...
効果The result or impact produced by an action, treatment, or ca...
効率Efficiency refers to the ability to achieve a goal or perfor...
利益Refers to the financial profit a company or individual makes...
Mais palavras de academic
対比
B1The act of placing two things side by side to show their differences; contrast.
論拠
B1The logical basis or grounds for an argument or belief. Evidence or reasoning used to support a claim.
共通
B1Sharing something with others; having something in common.
整合性
B1The quality of being logical and consistent, where different parts of an argument or data set agree with each other without contradiction.
包括的
B1Including or dealing with all or nearly all elements or aspects of something; wide-ranging and thorough.
裏付け
B1Evidence or support that confirms a theory, statement, or finding; corroboration that makes an argument credible.
概ね
B1For the most part; mostly or generally. Used to indicate that a statement is largely true despite minor exceptions.
論証
B1The process of proving a statement or theory through logical reasoning and the presentation of evidence.
暫定的
B1Not certain or fixed; provisional or temporary. Used for results or plans that may change after more info is gathered.
実際
B1Reality or the actual state of things, as opposed to theory or imagination.
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